God, if I could choose, I would say none. All of these lead to inequality (because circumstances vary between many individuals) but I believe prestige should hold the most weight in determining social class. Prestige (which is respect, recognition, or regard) is based on many criteria, including wealth, family background, fame, leadership, power, occupation, and accomplishments. Leadership, power, and accomplishments can both be achieved by any individual with hard work. This is still an unfair balance (gender inequality, racial/ethnical inequality/racism) because of individual factors, it still leaves hope for some people to rise the social ladder.
The answer would be the first x
The answer would be Presumption of Innocence
The Tortoise, you know, carries his house on his back. No matter how hard he tries, he can't leave home. They say that Jupiter punished him so much, because he was so lazy at home that he wouldn't go to Jupiter's wedding, even when he was specially invited.